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Clinical Chemistry and Hematology: QA and Controls

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Clinical Chemistry and Hematology: QA and Controls

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Questions and Answers

What is the primary focus of hematology?

The study of coagulation tests and thromboplastin
The study of blood cells and their inclusions
The study of medical devices
The study of blood and blood-forming tissues (correct)

What is the purpose of ISO 15223 in medical devices?

Providing a list of symbols for medical devices (correct)
Providing a list of hematology controls
Providing a list of symbols for hematology analyzers
Providing a list of whole blood analyzers

What is the level of the QC material for whole blood in hematology?

There is no specific level for whole blood
Level 1: Red (correct)
Level 3: Black
Level 2: Green/White

What is necessary before using hematology controls?

Invert gently the controls (D) Signup and view all the answers

What is the name of the automated CBC analyzer mentioned in the text?

Sysmex XN-550 (B) Signup and view all the answers

What is the term for the separation of solid and liquid portions of blood?

Centrifugation (A) Signup and view all the answers

What is a characteristic of an ideal QC material in hematology?

It is stable for long periods (B) Signup and view all the answers

What does the color red indicate in QC material for hematology?

High results (A) Signup and view all the answers

How should QC materials be stored?

At 2-8°C with the cap closed (A) Signup and view all the answers

What should be checked before using a QC material?

The expiration date (B) Signup and view all the answers

How should a vial of QC material be mixed before analysis?

By inverting the vial 20 times with a quick turning motion (B) Signup and view all the answers

What is the purpose of the piercable septum in the vial cap?

To enable sampler analysis (D) Signup and view all the answers